i've planned it out a few years ago, you can do MUCH better if you build yourself. The places around my area that have other pets besides fish have a lousy thrown toggether fish system that looks like it hasn't been cleaned in 15 years. I had an offer a few years ago to take over a store-it was free, the owner wanted out after some electrical problems. It turned out, the rent alone would have sunk me faster than the titanic! It takes a lot of research and every other day you'll have a new plan. Good luck!!